DC motor rotation information detecting device

Details DC motor rotation information detecting device DC motor rotation information detecting device

2006-10-17

2006-10-17

Donovan, Lincoln (Department: 2837)

Electricity: motive power systems

Motor-reversing

Armature or primary circuit control

C318S280000, C318S287000, C318S294000, C318S367000, C318S368000, C318S373000, C318S374000, C388S907200, C388S907500, C388S909000, C324S701000

Reexamination Certificate

active

07122982

ABSTRACT:
A rotation information detection device detects rotation information of a DC motor based on a surge component waveform superimposed on a voltage waveform between the terminals of the DC motor or a current waveform of the DC motor, a circuit is provided which supplies a current of a current value Ipwm45% during motor forward rotation or Ipwm55% during reverse motor rotation to the motor over the period from when the motor starts braking operation to when it stops.

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